"He finally opened the door, and I managed to get him out and then he closed the doors and drove away," she said. "He didn't say anything — didn't stop to see if we were OK."

Sweat says her son was crying, but was not seriously injured. She's since filed a complaint with TransLink.

"It's so important that they watch out and pay attention," she said. "And it would be nice to know what was going on. What if there's a higher safety concern with that bus driver and maybe his job needs to be looked at?"

Coast Mountain Bus Company says it will look at video camera from the bus. It says it takes these kinds of complaints seriously. (CBC)

TransLink received more than 31,000 complaints last year — half of them were about Coast Mountain staff. The company says it will be reviewing video from the bus.

"We take situations like this very seriously," said Coast Mountain vice president Michael Madill.

"Safety is our top priority and really all of our instructions we do with transit operators' centres around safe operating procedures and customer service."

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